Radiation carcinogenesis in dogs irradiated during prenatal and postnatal development.


To evaluate the lifetime hazards of ionizing radiation exposure, 1680 beagles received whole-body, 60-Cobalt gamma exposures or sham-exposures during development. Eight groups of 120 dogs each received mean doses of 16 or 83 cGy at 8 (preimplantation), 28 (embryonic), or 55 (late fetal) days postcoitus (dpc), or 2 (neonatal) days postpartum (dpp). One group… (More)


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